[dpdk-dev] [PATCH] app/testpmd: guarantee that array access is in range

Ferruh Yigit ferruh.yigit at intel.com
Wed Feb 19 15:41:58 CET 2020

On 2/19/2020 2:02 PM, Iremonger, Bernard wrote:
>> -----Original Message-----
>> From: Yigit, Ferruh <ferruh.yigit at intel.com>
>> Sent: Wednesday, February 19, 2020 12:40 PM
>> To: Lu, Wenzhuo <wenzhuo.lu at intel.com>; Wu, Jingjing
>> <jingjing.wu at intel.com>; Iremonger, Bernard
>> <bernard.iremonger at intel.com>; Lipiec, Herakliusz
>> <herakliusz.lipiec at intel.com>; Govindharajan, Hariprasad
>> <hariprasad.govindharajan at intel.com>; Burakov, Anatoly
>> <anatoly.burakov at intel.com>
>> Cc: dev at dpdk.org; Yigit, Ferruh <ferruh.yigit at intel.com>
>> Subject: [PATCH] app/testpmd: guarantee that array access is in range
>> Coverity complains about out of bound access, which is a false positive.
>> The return value of the 'parse_port_list()' can't be bigger than 'maxsize'
>> because of the logic in the function. ('value >= (int)maxsize'
>> check and 'marked[]' usage.)
>> But this is not explicitly clear, causing coverity warning and same question can
>> be rise by reviews later.
>> Adding a redundant check to highlight the access is in range, this is done by
>> replacing existing redundant check.
>> This is also good to protect against out out bound access in case
>> 'parse_port_list()' behaviour changes later unexpectedly.
>> Coverity issue: 354229
>> Fixes: 2df00d562d20 ("app/testpmd: add --portlist option")
>> Signed-off-by: Ferruh Yigit <ferruh.yigit at intel.com>
> Acked-by: Bernard Iremonger <bernard.iremonger at intel.com>

Applied to dpdk-next-net/master, thanks.

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